QS-300 Quick Shot
®
0721
4
HOW IT WORKS
Air pressure pushes the piston forward, shutting off the air chamber behind the piston
and the water chamber surrounding the piston tube. When the trigger is pulled, it
introduces air in front of the piston, pushing it to the rear. This opens both the air and
water chambers allowing the mixture to exit at the nozzle.
A WORD ABOUT "BLOW-BACK"
Operators of tube cleaning guns occasionally experience "Blow-Back" of cleaning tools.
This can happen when the tool is inserted into a blocked tube and an attempt is made to
shoot it through the tube. When the gun is removed, the built-up air pressure propels the
tool back toward the operator at high speed, subjecting the operator to injury.
THE QS-300 GUN VIRTUALLY ELIMINATES "BLOW-BACK."
Its built-in pressure relief valve
automatically vents air pressure through the gun when the trigger is released. When the
tube is completely depressurized, remove the gun from the tube.
OPERATION
Note:
Air pressure must exceed water pressure for proper operation.
CAUTIONS:
• Do not operate Quick Shot without eye protection.
• Water temperature must not exceed 1200
°
F (480
°
C).
• Cleaning tools exit the tubes at high speed – DO NOT stand in front of the far tube
sheet when tubes are being shot.
• Maximum air pressure is 150 PSI (10 BAR).
1.
Turn on plant air and water supply to the Quick Shot.
ALWAYS BLOW OUT AIR
SUPPLY LINE BEFORE CONNECTING TO QS-300
. Dirty air will clog valve in gun.
2.
Load the desired quantity of cleaning tools in the ends of the tubes.
3.
Push the cleaning tool into the tube with the Quick Shot nozzle until the nozzle seals
the end of the tube and hold firmly.
4.
Do not use with only air, use with both air and water.
5.
Prepare to shoot the upper tubes first, working your way horizontally to the bottom.
WARNING:
This tool has a reaction force "kick". The operator must have a firm grip
and stable standing position before operating.
6.
Squeeze and hold the trigger until the cleaning tool exits the far end of the tube.
Goodway Tube Scrubbers make a loud "pop" as they exit the tube.
7.
Cleaning tools are collected at the far end of the tube and brought back to the
loading end for reuse.
